/*
 * Copyright (2024) Bytedance Ltd. and/or its affiliates
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import { ClassConstructor } from './ClassConstructor';

export namespace Util {
  export function getConstructorOf(obj: ESObject): ClassConstructor<ESObject> {
    return Object.getPrototypeOf(obj).constructor
  }

  export function obtain<T>(block: () => T): T {
    return block()
  }

  /**
   * 计算所有 IterableIterator 中元素的数量
   * @param iterableIterator
   * @returns
   */
  export function countElements(iterableIterator: IterableIterator<any>): number {
    let count = 0;
    for (const _ of iterableIterator) {
      count++;
    }
    return count;
  }
}
